Garcia-Sanchez, Maruli Ali. Enlish language proficiency of selected public and private high school in Davao del Sur/ Maruli Ali Garcia-Sanchez. - Digos City: UMDC March 2005. - 94 pages; 29 cm. Subjects--Topical Terms: Liberal Arts--Undergraduate thesis.--English Dewey Class. No.: UT 0131 / Sa55